It may, too, be of some use to the public, in regulating the pecuniary reward of some of its inferior servants. If this rise in the price of some sorts of provisions be owing to a fall in the value of silver, their pecuniary reward, provided it was not too large before, ought certainly to be augmented in proportion to the extent of this fall. If it is not augmented, their real recompence will evidently be so much diminished. But if this rise of price is owing in the increased value, in consequence of the improved fertility of the land which produces such provisions, it becomes a much nicer matter to judge, either in what proportion any pecuniary reward ought to be augmented, or whether it ought to be augmented at all. The extension of improvement and cultivation, as it necessarily raises more or less, in proportion to the price of corn, that of every sort of animal food, so it as necessarily lowers that of, I believe, every sort of vegetable food. It raises the price of animal food; because a great part of the land which produces it, being rendered fit for producing corn, must afford to the landlord and farmer the rent and profit of corn land. It lowers the price of vegetable food; because, by increasing the fertility of the land, it increases its abundance. The improvements of agriculture, too, introduce many sorts of vegetable food, which requiring less land, and not more labour than corn, come much cheaper to market. Such are potatoes and maize, or what is called Indian corn, the two most important improvements which the agriculture of Europe, perhaps, which Europe itself, has received from the great extension of its commerce and navigation. Many sorts of vegetable food, besides, which in the rude state of agriculture are confined to the kitchen-garden, and raised only by the spade, come, in its improved state, to be introduced into common fields, and to be raised by the plough; such as turnips, carrots, cabbages, &c. If, in the progress of improvement, therefore, the real price of one species of food necessarily rises, that of another as necessarily falls; and it becomes a matter of more nicety to judge how far the rise in the one may be compensated by the fall in the other. When the real price of butcher's meat has once got to its height (which, with regard to every sort, except perhaps that of hogs flesh, it seems to have done through a great part of England more than a century ago), any rise which can afterwards happen in that of any other sort of animal food, cannot much affect the circumstances of the inferior ranks of people. The circumstances of the poor, through a great part of England, cannot surely be so much distressed by any rise in the price of poultry, fish, wild-fowl, or venison, as they must he relieved by the fall in that of potatoes.